Yukon Gear CK GM8.5 Carrier Install Kit for GM 8.5in and 8.2in Rear Differential
The CK GM8.5 from Yukon Gear is a complete carrier installation kit engineered for the GM 8.5in and GM 8.2in rear differential. The GM 8.5in 10-bolt is one of the most common rear axles in GM truck, SUV, and car production, covering Chevrolet and GMC C/K trucks, Blazer, Jimmy, Camaro, El Camino, and Suburban applications across several decades. The CK GM8.5 provides carrier bearings, races, pinion seal, and shim kit needed to complete a gear ratio change or carrier installation when using an OEM-size carrier with standard journal dimensions.
Features and Benefits
- Timken carrier bearings and matched races for precise carrier positioning
- Pinion seal included to prevent rear differential fluid from leaking
- Complete shim kit for accurate backlash adjustment
- Designed for GM 8.5in and GM 8.2in rear differential with standard OEM-size carrier bearing journals
- Covers C/K 1500, C/K 2500, Blazer, Jimmy, Camaro, El Camino, Suburban, and more
- Manufactured to Yukon Gear quality standards for reliable performance
Fitment
| Year | Make | Model | Notes |
|---|---|---|---|
| 1970-2000 | Chevrolet/GMC | C/K 1500, C/K 2500 | GM 8.5in 10-bolt rear, OEM-size carrier |
| 1970-2000 | Chevrolet | Camaro | GM 8.5in 10-bolt rear, OEM-size carrier |
| 1970-2000 | Chevrolet | El Camino | GM 8.5in 10-bolt rear, OEM-size carrier |
| 1970-2000 | Chevrolet/GMC | Blazer/Jimmy | GM 8.5in 10-bolt rear, OEM-size carrier |
| 1970-2000 | Chevrolet/GMC | Suburban | GM 8.5in 10-bolt rear, OEM-size carrier |
| 1964-1972 | Chevrolet | Various | GM 8.2in rear (select models with OEM carrier) |
Specifications
| Attribute | Detail |
|---|---|
| Part Number | CK GM8.5 |
| UPC | 883584570080 |
| Differential | GM 8.5in 10-bolt rear, GM 8.2in rear |
| Kit Type | Carrier Install Kit |
| Carrier Bearing Journal | Standard OEM-size (for OEM and OEM-replacement carriers) |
| Included Components | Carrier bearings, carrier races, pinion seal, shim kit |
| Warranty | Yukon Gear limited warranty against defects in materials and workmanship |
What's Included
- Timken carrier bearings (2)
- Carrier bearing races (2)
- Pinion seal
- Shim kit for backlash adjustment
Frequently Asked Questions
- What differential does CK GM8.5 fit? The CK GM8.5 fits the GM 8.5in 10-bolt rear differential and GM 8.2in rear differential using an OEM-size carrier. It covers a wide range of Chevrolet and GMC trucks, SUVs, and cars from 1964 through 2000.
- Does CK GM8.5 include a pinion seal? Yes. Unlike some carrier-only kits, the CK GM8.5 includes a pinion seal to allow a more complete differential service.
- What is the difference between CK GM8.5 and CK GM8.5-HD? The CK GM8.5 uses standard OEM-size carrier bearings for use with the OEM carrier or OEM-replacement carriers. The CK GM8.5-HD uses heavy-duty bearings sized for larger 1.562in journal aftermarket posi and locker units.
- Does CK GM8.5 include a shim kit? Yes. The CK GM8.5 includes a complete shim kit for setting backlash during carrier installation.
- Does CK GM8.5 fit the GM 8.2in differential? Yes. The CK GM8.5 also covers the GM 8.2in rear differential used in many 1960s and early 1970s GM passenger cars and trucks with the OEM-size carrier.
- Can CK GM8.5 be used when installing a locker or posi unit? The CK GM8.5 is designed for OEM-size carrier bearings. If your aftermarket locker or posi unit uses larger 1.562in OD carrier bearing journals, use the CK GM8.5-HD instead.
- Is this kit covered under the Magnuson-Moss Warranty Act? Yes. As a consumer product sold in the United States, the CK GM8.5 is subject to the provisions of the Magnuson-Moss Warranty Act. Yukon Gear provides a limited warranty against defects in materials and workmanship. Installation of aftermarket differential components does not void your vehicle manufacturer's warranty on unrelated systems under federal law.
- Does CK GM8.5 fit the 1999-2008 GM 8.6in differential? No. The CK GM8.5 is designed for the 8.5in and 8.2in differentials. For the 8.6in used in 1999-2008 GM trucks, see the Yukon PK GM8.6-A pinion kit or specific 8.6in carrier kits.
Installation Instructions
- Safely raise and support the vehicle. Drain differential fluid from the GM 8.5in housing.
- Remove the differential cover. Remove carrier bearing caps, marking them for reassembly in their original positions.
- Remove the differential carrier from the housing.
- Press off original carrier bearings. Install new Timken carrier bearings from the CK GM8.5 using a press.
- Install new carrier bearing races from the CK GM8.5 into the housing bores, fully seated.
- Install the carrier into the housing. Use the shim kit from the CK GM8.5 to adjust backlash to manufacturer specification.
- Verify gear contact pattern with marking compound. Adjust shims as needed.
- Reinstall bearing caps in original positions and torque to specification.
- Replace the pinion seal using the new seal from the CK GM8.5. Reinstall pinion flange and torque to specification.
- Reinstall differential cover with new gasket or RTV. Fill with correct GM-spec differential fluid to the proper level. Lower vehicle.
Prop 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.
Differential Install Kits
Differential Install Kits are stocked at Black Ops Auto Works for performance projects and dependable replacement work. Differential Install Kits provide the bearings, races, seals, shims, crush sleeves and setup hardware needed when rebuilding or re-gearing an axle. Shop master install kits, mini install kits, pinion install kits, carrier bearings, solid spacers and axle-specific hardware for Dana, GM, Ford, Chrysler, Jeep and Toyota applications. Every product is filterable by year, make, model, trim, engine and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 114 differential install kits products across street, truck, track, restoration and custom-build applications. What This Differential Install Kits Collection Covers This collection supports axle work on Dana 30, Dana 44, Dana 60, Ford 8.8, Ford 9-inch, GM 10-bolt, GM 8.6, GM 11.5 and Chrysler rear ends. Product pages should be matched to the exact differential model, spline count, axle ge...
View Differential Install Kits Products
Differentials & Components
Differentials and components at Black Ops Auto Works include diff braces, diff covers, rebuild and overhaul kits, differential bushings and mounts, limited-slip differentials, yokes, and final drive gears built for street, towing, off-road, and racing applications. Black Ops Auto Works carries 1,332 drivetrain SKUs from Yukon Gear and Axle, ARB, OS Giken, SuperPro, and Per4mance Development, spanning Hellcat and Trackhawk platforms, trucks, Jeep Wrangler, and sport compacts. What This Collection Covers This collection combines fifteen related differential and drivetrain categories, including diff braces, diff covers and gaskets, rebuild and overhaul kits, install kits, seal kits, bushings, mounts, housings, dropouts, spider gears, yokes, complete differentials, and final drive gears. Product Types in This Collection Shoppers will find billet differential braces for high-horsepower RWD platforms, nodular iron and aluminum diff covers, master overhaul kits, differential-to-cradle ...
View Differentials & Components Products
Drivetrain
Drivetrain parts for high-horsepower Mopar, truck, Jeep, and import platforms are stocked at Black Ops Auto Works. Shop differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, and driveline hardware for Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and turbocharged import platforms. Every drivetrain part is filterable by vehicle platform, drivetrain layout, transmission type, and power level so the correct part ships the first time. Black Ops Auto Works carries 4,765 drivetrain SKUs across differentials, axles, clutches, and transmission hardware. What This Category Covers The drivetrain transfers power from the engine to the wheels and includes the transmission, clutch, driveshafts, axles, differentials, ring and pinion gears, wheel hubs, wheel bearings, U-joints, shifters, mounts, and bushings. Upgrading these components improves power delivery, durability, and reliability under incr...
View Drivetrain Products
Yukon Gear & Axle
Yukon Gear and Axle drivetrain parts are stocked at Black Ops Auto Works for GM, Ford, Chrysler, Ram, and Jeep platforms. Shop ring and pinion sets, positraction and locker units, axle overhaul kits, differential covers, driveshafts, and manual transmission rebuild components for Dana 60/61, GM 8.2/8.5/8.6/9.5, Ford 8.8/9/10.25/10.5, and Chrysler 8.25/9.25 inch axles. Yukon parts are proven in extreme-duty use, including King of the Hammers and Moab rock crawling events, and every part here is filterable by axle size, gear ratio, and spline count. Black Ops Auto Works carries 1122 Yukon Gear and Axle SKUs across ring and pinion, differential, and axle rebuild categories. What This Brand Covers Yukon Gear and Axle builds ring and pinion sets, differential carriers, positraction and locking differentials, axle shafts, bearing and seal kits, driveshafts, and manual transmission rebuild components for domestic trucks, SUVs, and Jeeps. The brand is best known for supporting extreme-d...
View Yukon Gear & Axle Products


